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https://issues.apache.org/jira/browse/HBASE-17044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15646631#comment-15646631
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Stephen Yuan Jiang commented on HBASE-17044:
--------------------------------------------
The idea looks good:
{code}
+ // Only offline the merging region if it is known to exist.
+ if (rs_p != null) {
regionOffline(p);
+ }
{code}
I check the code in branch-1.1 - this logic also missing. So we should put
this change in both branch-1 and all branch-1.x
A side note: Since this logic is missing in all 1.x, we still don't know the
root cause of ITBLL failing in split/merge area in 1.2, but not in 1.1.
> Fix merge failed before creating merged region leaves meta inconsistent
> -----------------------------------------------------------------------
>
> Key: HBASE-17044
> URL: https://issues.apache.org/jira/browse/HBASE-17044
> Project: HBase
> Issue Type: Bug
> Reporter: Andrew Purtell
> Fix For: 2.0.0, 1.3.0, 1.4.0, 1.2.5, 1.1.8
>
> Attachments: HBASE-17044-branch-1.2.patch
>
>
> Similar to HBASE-16093. Rollback from failed merge should not offline the
> target region for the merge if it hasn't been created.
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